368 MANUAL OF PHILIPPINE BIRDS. 



length; wing, 116; tail, 110; culmen, 23; tarsus, 15; middle toe with 

 claw, 21. Five females, length, 212; wing, 115; tail, 106; culmen, 23; 

 tarsus, 15; middle toe with claw, 20. Bill and nails black; iris black to 

 leaden; food insects." (Bourns and Worcester MS.) 



Genus HIEROCOCCYX S. Miiller, 1839-44. 



Superficially this genus resembles Cuculus but differs by its com- 

 paratively shorter primaries and longer secondaries. In plumage and 

 flight these cuckoos mimic the smaller Accipitrine hawks, and this prob- 

 ably protects them from the attacks of the larger hawks and owls. 



Species. 



a 1 . Breast with distinct blackish brown bars, tip of tail white; wing, 200 mm. 



or more sparverioides (p. 368) 



a 2 . Breast without bars; tip of tail rufous; wing, 180 mm. or less.... fugax (p. 369) 



331. HIEROCOCCYX SPARVERIOIDES (Vigors). 

 ASIATIC HAWK CUCKOO. 



Ouculus sparverioides VIGORS, Proc. Zool. Soc. (1831), 173. 



Hierococcyx sparverioides SHELLEY, Cat. Birds Brit. Mus. (1891), 19, 



232. 

 Hierococcyx sparveroides SHABPE, Hand-List (1900), 2, 157; McGRKGOB 



and WORCESTER, Hand-List (1906), 61. 



Calamianes (Bourns & Worcester) ; Luzon (McGregor) ; Negros (Whitehead) ; 

 Palawan (Platen). Malay and Indian Peninsulas, Burmese provinces, eastern 

 Siberia, Japan, China, Borneo. 



"Adult. Above brown with a bronzy gloss, changing gradually into 

 gray on the back of the neck and crown; the outer tail-coverts barred 

 with white, and the longest ones often with darker ends and narrow 

 pale edges; tail with about five distinct dark bars and narrow pale tips 

 to the feathers, seldom much shaded with rufous; sides of the head and 

 chin gray, with a broad white band from the front of the eye to the 

 white on the throat, separating the gray of the "head from the chin ; 

 upper throat white, changing on the lower throat and front of the chest 

 into rufous, and the whole mottled with pale gray; remainder of the 

 under parts white, with the breast down to the thighs broadly barred with 

 dusky brown, and partially washed with rufous; under wing-coverts 

 white, shaded with rufous; quills dusky brown with numerous white or 

 buff partial bars on their inner webs. 'Bill black, with the base of the 

 lower mandible pale green ; iris, eyelids, legs, and claws bright ganiboge- 

 yellow.' (Davison.) Length, 394; culmen, 28; wing, 206; tail, 190; 

 tarsus, 25. 



"Immature. Differs from the adult -in the gray of the upper parts 

 being confined to the crown, the back of the neck being mottled with 

 rufous, the feathers of the back and wings more or less edged or barred 



